Print Email Facebook Twitter Using the Helix Mixing Approach on Floating Offshore Wind Turbines Title Using the Helix Mixing Approach on Floating Offshore Wind Turbines Author van den Berg, D. (TU Delft Large Scale Energy Storage) De Tavernier, D. (TU Delft Wind Energy) van Wingerden, J.W. (TU Delft Team Jan-Willem van Wingerden) Date 2022 Abstract In recent years dynamic induction control has shown great potential in reducing wake-to-turbine interaction by increasing the mixing in the wake. With these wake mixing methods the thrust force will vary in time. If applied to a floating offshore wind turbine, it will cause the platform to move. In this paper the effect of the Helix mixing approach on a DTU10MW turbine on the TripleSpar platform and its wake is evaluated. When the Helix mixing approach is applied at Strouhal equal to 0.25, the yaw movement is excited close to the eigenfrequency of the platform resulting in significant yaw angles for small blade pitch angles. To understand the impact of the motion on the wake, the yaw motion is simulated using the free wake vortex method as implemented in Qblade. Under laminar inflow, results show that the windspeed at a distance of 5 rotor diameters downstream can be increased by up to 10% compared to a fixed-bottom turbine. To reference this document use: http://resolver.tudelft.nl/uuid:d62f1b83-98ce-48cf-95c3-b3ad612c7b70 DOI https://doi.org/10.1088/1742-6596/2265/4/042011 ISSN 1742-6588 Source Journal of Physics: Conference Series, 2265 (4) Event 2022 Science of Making Torque from Wind, TORQUE 2022, 2022-06-01 → 2022-06-03, Delft, Netherlands Part of collection Institutional Repository Document type journal article Rights © 2022 D. van den Berg, D. De Tavernier, J.W. van Wingerden Files PDF Berg_2022_J._Phys._Conf._ ... 042011.pdf 2.47 MB Close viewer /islandora/object/uuid:d62f1b83-98ce-48cf-95c3-b3ad612c7b70/datastream/OBJ/view